Product Information: The pressure relief valve helps to eleviate pressure build up within a central heating system. It is set to open as the pressure increases to stop pressure building up and breaking the system.
This part is present in 6 different boilers in the Saunier Duval range including the Saunier Duval TWIN F 28 E , SYLVA FF 24 E , TWIN F 28 , ISOMAX F 28 E , ISOMAX F 28 E2 .